Fuel

Josh Tickell

Self - Narrator

Barbara Boxer

Self - Senator, California

Richard Branson

Self - Founder, Virgin Group

조지 W. 부시

Self - President of the United States

Sheryl Crow

Self - Musician / Environmental Activist

래리 데이비드

Self - Actor / Comedian / Environmental Activist

Blanche Lincoln

Self

Jim Hightower

Self